Iain
Hello there,
Sorry for the trouble. Don’t worry, the PC has one-year warranty.
Could you please send us a picture of SN on the bottom of the PC? Let’s do some troubleshooting. Here are some potential solutions:
1.Please turn off the PC , unplug the power supply, and press the CMOS button (or put the pin into the CMOS pinhole and press it ) for about 10 seconds , restart the PC after ten minutes. Here is the tutorial [https://mega.nz/file/2nIRGaYI#M2aIM2bkOJshrhE8sK8MNiKopfyHlqyjnn86TypZp2w]
2.Please right click window–click “”setting“—Sound—-more sound setting –click “playback”–right click speaker—properties–controller information —properties—update the driver. You also need to check if the speakers is disabled or not in the playback setting.
Here is alternative to troubleshoot the audio problem. https://thegeekpage.com/fix-this-device-cannot-start-code-10-error-in-sound-devices-on-windows-10/#:~:text=%E2%80%9CThis%20device%20cannot%20start.,driver%20installed%20on%20your%20computer.
Here is the driver for you to update.
Here is driver for SER7 7840: https://url.bee-link.cn/wPts
Here is tutorial: https://url.bee-link.cn/wEmk
Please go to AMD website and download the auto-detect program.It will update some chipsets and video drivers automatically. It will identify and install appropriate drivers for their AMD hardware. The program works by scanning the user’s system to detect the installed AMD hardware components, such as graphics cards or processors. It then compares the detected hardware information with a database of AMD drivers and software versions.
Best regards!
Yue
Customer Support